JP2006288080A - Induction motor and its manufacturing method - Google Patents

Induction motor and its manufacturing method Download PDF

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JP2006288080A
JP2006288080A JP2005104838A JP2005104838A JP2006288080A JP 2006288080 A JP2006288080 A JP 2006288080A JP 2005104838 A JP2005104838 A JP 2005104838A JP 2005104838 A JP2005104838 A JP 2005104838A JP 2006288080 A JP2006288080 A JP 2006288080A
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yoke
winding
teeth
induction motor
wound
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JP4730519B2 (en
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Yusuke Kikuchi
祐介 菊地
Patteisonteijaruun Pairou
パッティソンティジャルーン パイロウ
Anukuun Raksin
アヌクーン ラクシン
Kenji Narita
憲治 成田
Yuji Kawai
祐司 河合
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Fujitsu General Ltd
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Fujitsu General Ltd
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Priority to KR1020060029225A priority patent/KR20060105619A/en
Priority to CN2006100719725A priority patent/CN1841887B/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/16—Stator cores with slots for windings
    • H02K1/165—Shape, form or location of the slots
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K17/00—Asynchronous induction motors; Asynchronous induction generators
    • H02K17/02—Asynchronous induction motors
    • H02K17/04—Asynchronous induction motors for single phase current
    • H02K17/08—Motors with auxiliary phase obtained by externally fed auxiliary windings, e.g. capacitor motors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
    • H02K3/16—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots for auxiliary purposes, e.g. damping or commutating
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/28—Layout of windings or of connections between windings

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Windings For Motors And Generators (AREA)
  • Induction Machinery (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To wind wires to each tooth serially when winding main winding and decelerating winding, and auxiliary winding alternately on every other tooth of a stator. <P>SOLUTION: The yoke 21 of the stator is a yoke link 21Y where yoke members each including a tooth are serially connected flexibly by specified coupling means, and in condition that the yoke link 21Y is expanded in a roughly straight state, the main winding is wound serially via crossovers on odd-numbered teeth, and also the auxiliary winding is wound serially via crossovers on even-numbered teeth, and then both ends of the yoke link 21Y are coupled with each other into an annular yoke. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、例えば空気調和機のファンモータなどとして用いられるインナーロータ型の誘導電動機（コンデンサモータ）の製造方法に関し、さらに詳しく言えば、固定子に対する巻線技術に関するものである。   The present invention relates to a method of manufacturing an inner rotor type induction motor (condenser motor) used as a fan motor of an air conditioner, for example, and more particularly to a winding technique for a stator.

例えば、特許文献１に記載されているように、誘導電動機は、回転出力軸を有する回転子と、その外周側に同軸的に配置される固定子とを含み、固定子は環状のヨークの内周面側に突設された２Ｎ個（Ｎは極数）のティースを有し、各ティースのうち例えば奇数番目のティースに主巻線が巻回され、偶数番目のティースに補助巻線が巻回される。   For example, as described in Patent Document 1, an induction motor includes a rotor having a rotation output shaft and a stator that is coaxially disposed on an outer peripheral side thereof, and the stator is an inner portion of an annular yoke. There are 2N teeth (N is the number of poles) projecting on the peripheral surface side, and the main winding is wound around, for example, the odd-numbered teeth among the teeth, and the auxiliary winding is wound around the even-numbered teeth. Turned.

また、特許文献１には、主巻線が巻回されるティースもしくは補助巻線が巻回されるティースのいずれかに、減速巻線（変速巻線）を施すことにより、変速可能とした可変速の誘導電動機も記載されている。   Further, in Patent Document 1, it is possible to change the speed by applying a reduction winding (transmission winding) to either a tooth around which the main winding is wound or a tooth around which the auxiliary winding is wound. A variable speed induction motor is also described.

特開２００１−１８６７３３号公報JP 2001-186733 A

上記したように、誘導電動機においては、主巻線および補助巻線がそれぞれ１つ置きのティースに巻回されるが、ヨークが環状に形成されているため、従来では特許文献１に記載されているように、主巻線を１つ置きのティースにじか巻きするとともに、補助巻線を主巻線間のティースにじか巻きしたうえで、主巻線同士を順次直列に接続し、同様に補助巻線同士を順次直列に接続しなければならず、その巻線接続作業に多大な労力と時間を要する。減速巻線を備える可変速の誘導電動機の場合には、さらに減速巻線の接続処理が必要となる。   As described above, in the induction motor, the main winding and the auxiliary winding are wound around every other tooth, but since the yoke is formed in an annular shape, it is conventionally described in Patent Document 1. As shown in the figure, the main winding is wound directly around every other tooth, and the auxiliary winding is wound directly around the teeth between the main windings, and then the main windings are sequentially connected in series. In addition, the auxiliary windings must be sequentially connected in series, and the winding connection work requires a lot of labor and time. In the case of a variable speed induction motor provided with a reduction winding, further reduction winding connection processing is required.

したがって、本発明の課題は、固定子の各ティースに対して１つ置きに主巻線，補助巻線さらには減速巻線を巻回するにあたって、各ティースに対するそれらの各巻線を一連に行えるようにして、後処理としての直列結線作業を不要とすることにある。   Therefore, an object of the present invention is to perform a series of each winding for each tooth when winding the main winding, the auxiliary winding and the reduction winding for every other tooth of the stator. Thus, there is no need for serial connection work as post-processing.

上記課題を解決するため、請求項１に記載の発明は、回転出力軸を有する回転子と、上記回転子の外周側に同軸的に配置される固定子とを含み、上記固定子は環状のヨークの内周面側に突設された２Ｎ個（Ｎは極数）のティースを有し、上記各ティースのうち奇数番目の上記ティースに主巻線が巻回され、偶数番目の上記ティースに補助巻線が巻回される誘導電動機の製造方法において、上記各ティースを含む２Ｎ個のヨークメンバーを所定の連結手段で屈曲可能に一連につなげたヨーク連結体とし、上記ヨーク連結体をほぼ直線状に展開した状態で、上記主巻線を上記奇数番目の各ティースに渡り線を介して一連に巻回するとともに、上記補助巻線を上記偶数番目の各ティースに渡り線を介して一連に巻回したのち、上記ヨーク連結体の両端を連結して上記環状のヨークとすることを特徴としている。   In order to solve the above-mentioned problem, the invention described in claim 1 includes a rotor having a rotation output shaft and a stator disposed coaxially on the outer peripheral side of the rotor, and the stator is annular. There are 2N teeth (N is the number of poles) protruding from the inner peripheral surface side of the yoke, and the main winding is wound around the odd-numbered teeth among the teeth, and the even-numbered teeth are In the method of manufacturing an induction motor in which an auxiliary winding is wound, a yoke connection body is formed by connecting 2N yoke members including the teeth in a series so as to be bent by a predetermined connection means, and the yoke connection body is substantially straight. The main winding is wound around the odd-numbered teeth in a series via a crossover wire, and the auxiliary winding is seriesed around the even-numbered teeth via a crossover After winding, both yoke connecting bodies The linked is characterized in that the said annular yoke.

請求項２に記載の発明は、上記請求項１において、上記主巻線の渡り線を上記ヨーク連結体の一方の端面側に配線し、上記補助巻線の渡り線を上記ヨーク連結体の他方の端面側に配線することを特徴としている。   According to a second aspect of the present invention, in the first aspect, the connecting wire of the main winding is wired to one end face side of the yoke coupling body, and the connecting wire of the auxiliary winding is connected to the other end of the yoke coupling body. It is characterized by wiring on the end face side.

請求項３に記載の発明は、上記主巻線が巻回される上記奇数番目の各ティースおよび／または上記補助巻線が巻回される上記偶数番目の各ティースに、さらに減速巻線を渡り線を介して一連に巻回することを特徴としている。   According to a third aspect of the present invention, the odd-numbered teeth around which the main winding is wound and / or the even-numbered teeth around which the auxiliary winding is wound are further crossed over a reduction winding. It is characterized by being wound in series via a wire.

請求項４に記載の発明は、上記請求項３において、上記主巻線もしくは上記補助巻線を、その始端側ティースから終端側ティースにまで１ティース置きに一連に巻回したのち、その巻線を切断することなく上記始端側ティースに戻し、上記減速巻線用として再度上記始端側ティースから上記終端側ティースにまで１ティース置きに一連に巻回することを特徴としている。   The invention according to claim 4 is the winding according to claim 3, wherein the main winding or the auxiliary winding is wound in series every other tooth from the start side teeth to the end side teeth. It returns to the said start end side teeth without cut | disconnecting, and it is characterized by winding continuously for every 1 teeth from the said start end side teeth to the said termination | terminus terminal teeth again for the said deceleration winding.

請求項５に記載の発明は、上記請求項１ないし４のいずれか１項において、上記ヨーク連結体を１ブロック内に複数個のヨークメンバーを含む複数のヨークブロックに区分けし、上記各ヨークブロックに含まれるヨークメンバー同士は薄肉ヒンジを介して屈曲自在とし、上記ヨークブロック間は上記ヨーク連結体に被せられるインシュレータを介して屈曲自在につなげられることを特徴としている。   According to a fifth aspect of the present invention, in any one of the first to fourth aspects, the yoke coupling body is divided into a plurality of yoke blocks including a plurality of yoke members in one block, and each yoke block is divided. The yoke members included in the above are made to be bendable via thin hinges, and the yoke blocks are flexibly connected to each other via an insulator covering the yoke coupling body.

請求項６に記載の発明は、上記請求項１ないし５のいずれか１項において、上記ヨーク連結体の両端を連結して上記環状のヨークとしたのち、上記環状のヨークをモールド成型により一体に固めることを特徴としている。   According to a sixth aspect of the present invention, in any one of the first to fifth aspects, after connecting both ends of the yoke coupling body to form the annular yoke, the annular yoke is integrally formed by molding. It is characterized by hardening.

請求項７に記載の発明は、回転出力軸を有する回転子と、上記回転子の外周側に同軸的に配置される固定子とを含み、上記固定子は環状のヨークの内周面側に突設された２Ｎ個（Ｎは極数）のティースを有し、上記各ティースのうち奇数番目の上記ティースに主巻線が巻回され、偶数番目の上記ティースに補助巻線が巻回されている誘導電動機において、上記各ティースを含む２Ｎ個のヨークメンバーを所定の連結手段で屈曲可能に一連につなげたヨーク連結体を備え、上記ヨーク連結体の上記奇数番目の各ティースに上記主巻線が渡り線を介して一連に巻回され、上記ヨーク連結体の上記偶数番目の各ティースに上記補助巻線が渡り線を介して一連に巻回されていることを特徴としている。   The invention described in claim 7 includes a rotor having a rotation output shaft and a stator disposed coaxially on the outer peripheral side of the rotor, and the stator is disposed on the inner peripheral surface side of the annular yoke. There are 2N teeth (N is the number of poles) protruding, and the main winding is wound around the odd-numbered teeth among the teeth, and the auxiliary winding is wound around the even-numbered teeth. The induction motor includes a yoke connection body in which 2N yoke members including the teeth are connected in a series so as to be bent by a predetermined connection means, and the main winding is attached to the odd-numbered teeth of the yoke connection body. A wire is wound in a series via a jumper wire, and the auxiliary winding is wound in a series on the even-numbered teeth of the yoke coupling body via a jumper wire.

請求項８に記載の発明は、上記請求項７において、上記主巻線の渡り線が上記ヨーク連結体の一方の端面側に配線され、上記補助巻線の渡り線が上記ヨーク連結体の他方の端面側に配線されていることを特徴としている。   According to an eighth aspect of the present invention, in the seventh aspect, the connecting wire of the main winding is wired on one end face side of the yoke connecting body, and the connecting wire of the auxiliary winding is the other end of the yoke connecting body. It is characterized by being wired on the end face side.

請求項１に記載の発明によれば、各ティースを含む２Ｎ個のヨークメンバーを所定の連結手段で屈曲可能に一連につなげたヨーク連結体とし、ヨーク連結体をほぼ直線状に展開した状態で、主巻線を奇数番目の各ティースに渡り線を介して一連に巻回するとともに、補助巻線を偶数番目の各ティースに渡り線を介して一連に巻回したのち、ヨーク連結体の両端を連結して環状のヨークとすることにより、主巻線および補助巻線を各ティースごとに切断することなく、それぞれ一連に巻線することができる。   According to the first aspect of the present invention, 2N yoke members including the teeth are connected to each other in a series so as to be bent by a predetermined connecting means, and the yoke connected body is developed in a substantially linear shape. The main winding is wound around each odd-numbered tooth in a series via a crossover wire, and the auxiliary winding is wound around each even-numbered tooth in a series via a crossover wire, By connecting the two to form an annular yoke, the main winding and the auxiliary winding can be wound in series without being cut for each tooth.

請求項２に記載の発明によれば、主巻線の渡り線をヨーク連結体の一方の端面側に配線し、補助巻線の渡り線をヨーク連結体の他方の端面側に配線することにより、主巻線と補助巻線との絶縁特性を高めることができる。   According to the invention described in claim 2, by connecting the connecting wire of the main winding to one end face side of the yoke coupling body and wiring the connecting wire of the auxiliary winding to the other end face side of the yoke connecting body. Insulation characteristics between the main winding and the auxiliary winding can be improved.

請求項３に記載の発明によれば、主巻線が巻回される奇数番目の各ティースおよび／または上記補助巻線が巻回される上記偶数番目の各ティースに、さらに減速巻線を渡り線を介して一連に巻回することにより、可変速の誘導電動機を生産性よく容易に得ることができる。   According to the third aspect of the present invention, the reduction winding is further crossed over the odd-numbered teeth around which the main winding is wound and / or the even-numbered teeth around which the auxiliary winding is wound. By winding in series through a wire, a variable speed induction motor can be easily obtained with high productivity.

請求項４に記載の発明によれば、主巻線もしくは補助巻線を、その始端側ティースから終端側ティースにまで１ティース置きに一連に巻回したのち、その巻線を切断することなく始端側ティースに戻し、減速巻線用として再度始端側ティースから終端側ティースにまで１ティース置きに一連に巻回することにより、始端側ティースでの主巻線もしくは補助巻線と減速巻線との電位差が小さくなるため、巻線間の特別な絶縁処理を不要とすることができる。   According to the fourth aspect of the present invention, the main winding or the auxiliary winding is wound in series every other tooth from the start end side teeth to the end end side teeth, and then the start end is cut without cutting. Return to the side teeth and again for the reduction winding, again by winding a series of teeth from the starting end tooth to the terminating end tooth, so that the main winding or auxiliary winding on the starting end tooth and the reduction winding Since the potential difference is reduced, a special insulation process between the windings can be eliminated.

請求項５に記載の発明によれば、ヨーク連結体を１ブロック内に複数個のヨークメンバーを含む複数のヨークブロックに区分けし、各ヨークブロックに含まれるヨークメンバー同士は薄肉ヒンジを介して屈曲自在とし、ヨークブロック間はヨーク連結体に被せられるインシュレータを介して屈曲自在につなげられることにより、ヨークに固有的な必要とされる部品のみにてヨーク連結体を屈曲自在に連結することができる。   According to the fifth aspect of the present invention, the yoke coupling body is divided into a plurality of yoke blocks including a plurality of yoke members in one block, and the yoke members included in each yoke block are bent via thin-walled hinges. The yoke blocks can be flexibly connected between the yoke blocks via an insulator covering the yoke coupling body, so that the yoke coupling body can be flexibly coupled only with necessary parts specific to the yoke. .

請求項６に記載の発明によれば、ヨーク連結体の両端を連結して環状のヨークとしたのち、環状のヨークをモールド成型により一体に固めることにより、特に減速機構を有するコンデンサ誘導電動機の振動を低減することができる。   According to the sixth aspect of the present invention, both ends of the yoke coupling body are connected to form an annular yoke, and then the annular yoke is integrally hardened by molding, so that the vibration of the capacitor induction motor having a speed reduction mechanism can be obtained. Can be reduced.

次に、図面を参照して、本発明のいくつかの実施形態について説明するが、本発明はこれに限定されるものではない。この実施形態で説明する誘導電動機は６極で、１２個のティースを備える。誘導電動機において、主巻線と補助巻線はそれぞれ１つ置きの異なるティースに巻回されるが、この実施形態では説明の便宜上、主巻線が巻回されるティースを奇数番目とし、補助巻線が巻回されるティースを偶数番目としている。また、この実施形態に係る誘導電動機は、減速巻線（変速巻線）を有する可変速誘導電動機である。   Next, some embodiments of the present invention will be described with reference to the drawings, but the present invention is not limited thereto. The induction motor described in this embodiment has 6 poles and 12 teeth. In the induction motor, the main winding and the auxiliary winding are wound around every other different tooth. In this embodiment, for convenience of explanation, the teeth around which the main winding is wound are odd-numbered, and the auxiliary winding is wound. The teeth on which the wire is wound are even-numbered. The induction motor according to this embodiment is a variable speed induction motor having a reduction winding (transmission winding).

図１に示すように、この誘導電動機には、回転出力軸１１を有する回転子１０と、回転子１０の外周側に同軸的に配置される固定子２０とが含まれる。本発明において、回転子１０は任意の構成であってよく、例えばかご型や巻線型であってよい。   As shown in FIG. 1, the induction motor includes a rotor 10 having a rotation output shaft 11 and a stator 20 disposed coaxially on the outer peripheral side of the rotor 10. In the present invention, the rotor 10 may have any configuration, and may be, for example, a cage type or a winding type.

固定子２０は環状のヨーク２１を備え、この例での誘導電動機は６極であることから、ヨーク２１の内周面側には、２×６＝１２個のティース（歯）Ｔ１〜Ｔ１２が回転子１０側に向けて突設されている。なお、４極の場合には８個のティースが設けられる。   Since the stator 20 includes an annular yoke 21 and the induction motor in this example has six poles, 2 × 6 = 12 teeth (teeth) T1 to T12 are provided on the inner peripheral surface side of the yoke 21. It protrudes toward the rotor 10 side. In the case of 4 poles, 8 teeth are provided.

ティースＴ１〜Ｔ１２のうち、奇数番目のティースＴ１，Ｔ３，Ｔ５，Ｔ７，Ｔ９，Ｔ１１に主巻線ＷＭが巻回され、偶数番目のティースＴ２，Ｔ４，Ｔ６，Ｔ８，Ｔ１０，Ｔ１２に補助巻線ＷＡが巻回される。なお、各ティースを奇数番目と偶数番目とに分けたのは、主巻線と補助巻線がそれぞれ１つ置きの異なるティースに巻回されることを説明するためであり、偶数番目のティースに主巻線ＷＭが巻回され、奇数番目のティースに補助巻線ＷＡが巻回されてもよい。   Of the teeth T1 to T12, the main winding WM is wound around the odd-numbered teeth T1, T3, T5, T7, T9, and T11, and the auxiliary winding is wound around the even-numbered teeth T2, T4, T6, T8, T10, and T12. The wire WA is wound. The reason why each tooth is divided into odd-numbered and even-numbered is to explain that the main winding and the auxiliary winding are wound on every other different tooth. The main winding WM may be wound, and the auxiliary winding WA may be wound around the odd-numbered teeth.

この誘導電動機は、可変速とするための減速巻線ＷＲをさらに備える。減速巻線ＷＲの結線方法には、図２（ａ）〜（ｃ）の等価回路に示すように３つ方法がある。すなわち、図２（ａ）のように減速巻線ＷＲを主巻線ＷＭに直列に接続する場合と、図２（ｂ）のように減速巻線ＷＲを補助巻線ＷＡに直列に接続する場合と、図２（ｃ）のように主巻線・補助巻線用の各減速巻線ＷＲａ，ＷＲｂを主巻線ＷＭに直列に接続する場合とがある。   This induction motor further includes a reduction winding WR for making the speed variable. There are three methods for connecting the reduction winding WR, as shown in the equivalent circuits of FIGS. That is, when the reduction winding WR is connected in series with the main winding WM as shown in FIG. 2A, and when the reduction winding WR is connected in series with the auxiliary winding WA as shown in FIG. 2B. In some cases, as shown in FIG. 2C, the reduction windings WRa and WRb for the main and auxiliary windings are connected in series to the main winding WM.

図１の例は、図２（ａ）のように減速巻線ＷＲを主巻線ＷＭに直列に接続した場合であり、減速巻線ＷＲは主巻線ＷＭと同じく奇数番目のティースＴ１，Ｔ３，Ｔ５，Ｔ７，Ｔ９，Ｔ１１に巻回される。   The example of FIG. 1 is a case where the reduction winding WR is connected in series to the main winding WM as shown in FIG. 2A, and the reduction winding WR is an odd-numbered tooth T1, T3, like the main winding WM. , T5, T7, T9, T11.

図１に示す各端子Ａ〜Ｇは図２（ａ）のものと対応しており、Ｂ，Ｇは主巻線ＷＭの端子、Ｄ，Ｅは補助巻線ＷＡの端子、Ａ，Ｆは減速巻線ＷＲの端子で、主巻線ＷＭの一方の端子Ｇと補助巻線ＷＡの一方の端子Ｅとの間にコンデンサＣが接続される。   The terminals A to G shown in FIG. 1 correspond to those in FIG. 2A, B and G are terminals of the main winding WM, D and E are terminals of the auxiliary winding WA, and A and F are decelerations. A capacitor C is connected between one terminal G of the main winding WM and one terminal E of the auxiliary winding WA at the terminal of the winding WR.

また、主巻線ＷＭの他方の端子Ｂ，補助巻線ＷＡの他方の端子Ｄおよび減速巻線ＷＲの端子Ｆは共通に接続され、交流電源１の一端側を主巻線ＷＭの一方の端子Ｇに接続し、交流電源１の他端側をスイッチＳＷを介して減速巻線ＷＲの端子Ａ，Ｆのいずれか一方に接続可能とする。通常、スイッチＳＷは端子Ｆ側に切り替えられ、減速時にスイッチＳＷは端子Ａ側に切り替えられる。   The other terminal B of the main winding WM, the other terminal D of the auxiliary winding WA, and the terminal F of the reduction winding WR are connected in common, and one end of the AC power supply 1 is connected to one terminal of the main winding WM. The other end of the AC power supply 1 is connectable to either one of the terminals A and F of the reduction winding WR via the switch SW. Normally, the switch SW is switched to the terminal F side, and the switch SW is switched to the terminal A side during deceleration.

本発明では、主巻線ＷＭ，補助巻線ＷＡおよび減速巻線ＷＲのいずれも、図示しない巻線機で巻線を途中で切断することなく巻線可能とする。そのため、ヨーク２１を屈曲可能なヨーク連結体とし、そのヨーク連結体をほぼ直線的に展開したストレートコア状態として巻線機にかける。   In the present invention, any of the main winding WM, the auxiliary winding WA, and the reduction winding WR can be wound by a winding machine (not shown) without cutting the winding halfway. Therefore, the yoke 21 is a bendable yoke coupling body, and the yoke coupling body is applied to the winding machine in a straight core state in which the yoke coupling body is developed substantially linearly.

図３に巻線が施される前のヨーク２１を示す。このヨーク２１を屈曲可能なヨーク連結体とするため、この例では、ヨーク２１を３等分割して、ティースＴ１〜Ｔ４を含むヨークブロックＢ１，ティースＴ５〜Ｔ８を含むヨークブロックＢ２，ティースＴ９〜Ｔ１２を含むヨークブロックＢ３の３つのヨークブロックに分ける。   FIG. 3 shows the yoke 21 before winding. In order to make this yoke 21 a bendable yoke coupling body, in this example, the yoke 21 is divided into three equal parts, a yoke block B1 including teeth T1 to T4, a yoke block B2 including teeth T5 to T8, and a teeth T9 to T9. The yoke block B3 including T12 is divided into three yoke blocks.

各ヨークブロックＢ１〜Ｂ３は同一構成であるため、図４にそのうちのヨークブロックＢ１を示し、これについて説明する。図４（ａ）はヨークブロックＢ１の平面図，図４（ｂ）はそのティース面側から見た正面図で、ヨークブロックＢ１の構成要素に対応するヨークブロックＢ２，Ｂ３の構成要素の参照符号は括弧内に記す。   Since each of the yoke blocks B1 to B3 has the same configuration, FIG. 4 shows the yoke block B1 and will be described. 4A is a plan view of the yoke block B1, and FIG. 4B is a front view of the yoke block B1 as viewed from the tooth surface side. Reference numerals of the components of the yoke blocks B2 and B3 corresponding to the components of the yoke block B1 Is in parentheses.

ヨークブロックＢ１は、電磁鋼板をプレスで打ち抜き、その所定枚数を積層することにより形成されるが、その際、ヨークブロックＢ１のヨークは、ティースＴ１を有するヨークメンバー２１ａ，ティースＴ２を有するヨークメンバー２１ｂ，ティースＴ３を有するヨークメンバー２１ｃ，ティースＴ４を有するヨークメンバー２１ｄの４つのヨークメンバーを含み、その隣接するもの同士が屈曲自在な薄肉ヒンジ２２により連結された状態として作製される。この種の薄肉ヒンジ２２は、電磁鋼板のプレス打ち抜き時に、各ヨークメンバー間に例えばＶ字状のカット溝を、逆側に切欠きを入れることにより容易に形成することができる。   The yoke block B1 is formed by punching a magnetic steel sheet with a press and laminating a predetermined number thereof. At that time, the yoke of the yoke block B1 is a yoke member 21a having teeth T1 and a yoke member 21b having teeth T2. , The yoke member 21c having the teeth T3, and the yoke member 21d having the teeth T4, and the adjacent members are manufactured by being connected by a thin hinge 22 that can be bent. This type of thin-walled hinge 22 can be easily formed by, for example, forming a V-shaped cut groove between the yoke members at the opposite side when the electromagnetic steel sheet is stamped.

巻線を施す前に、各ヨークブロックＢ１〜Ｂ３には合成樹脂材からなるインシュレータが被せられるが、本発明の好ましい態様によれば、図５に示すように、各ヨークブロックＢ１〜Ｂ３をインシュレータ３０を利用して屈曲自在に連結することができる。その構成を図６により説明する。   Before the winding, each of the yoke blocks B1 to B3 is covered with an insulator made of a synthetic resin material. According to a preferred embodiment of the present invention, as shown in FIG. 30 can be flexibly connected. The configuration will be described with reference to FIG.

インシュレータ３０には、図６（ａ）に示す上部インシュレータ３１と、図６（ｃ）に示す下部インシュレータ３２とが含まれ、これらが図６（ｂ）に示すヨークブロックＢ１〜Ｂ３の上方と下方とから嵌合される。これにより、図５に示すように、各ティースの巻線部分および各ヨークメンバーに電気的な絶縁が施され、各ティース先端面のみが露出される。   The insulator 30 includes an upper insulator 31 shown in FIG. 6A and a lower insulator 32 shown in FIG. 6C, which are above and below the yoke blocks B1 to B3 shown in FIG. 6B. And is fitted from. As a result, as shown in FIG. 5, electrical insulation is applied to the winding portion of each tooth and each yoke member, and only the front end surface of each tooth is exposed.

上部インシュレータ３１および下部インシュレータ３２は、ともにヨークメンバー２１ａ〜２１ｌに対応する１２個のセグメント３３を備えるが、この例では、上部インシュレータ３１は、それぞれ６個のセグメント３３を一体に有する右側上部インシュレータ３１Ｒと、左側上部インシュレータ３１Ｌとに２分割されている。   Both the upper insulator 31 and the lower insulator 32 include twelve segments 33 corresponding to the yoke members 21a to 21l. In this example, the upper insulator 31 has a right upper insulator 31R integrally including six segments 33, respectively. And the left upper insulator 31L.

また、下部インシュレータ３２も、それぞれ６個のセグメント３３を一体に有する右側下部インシュレータ３２Ｒと、左側下部インシュレータ３２Ｌとに２分割されている。なお、図示しないが、各セグメント３３間には合成樹脂からなる薄肉ヒンジが形成されている。   The lower insulator 32 is also divided into two parts, a right lower insulator 32R and a left lower insulator 32L, each having six segments 33 integrally. Although not shown, thin hinges made of synthetic resin are formed between the segments 33.

ヨークメンバー２１ａ〜２１ｆにかけて左側上部インシュレータ３１Ｌと左側下部インシュレータ３２Ｌを被せ、ヨークメンバー２１ｇ〜２１ｌにかけて右側上部インシュレータ３１Ｒと右側下部インシュレータ３２Ｒを被せることにより、３つのヨークブロックＢ１〜Ｂ３を屈曲自在に連結してなるヨーク連結体２１Ｙとすることができる。   The yoke members 21a to 21f are covered with the left upper insulator 31L and the left lower insulator 32L, and the yoke members 21g to 21l are covered with the right upper insulator 31R and the right lower insulator 32R so that the three yoke blocks B1 to B3 are flexibly connected. It can be set as the yoke coupling body 21Y formed.

本発明では、図７に示すように、ヨーク連結体２１Ｙをほぼ直線状に展開したストレートコア状態として巻線を施す。図７（ａ）はヨーク連結体２１Ｙの上面図，図７（ｂ）はティース側から見た正面図，図７（ｃ）は底面図である。なお、図７の巻線例は、図１および図２（ａ）に示すように、主巻線ＷＭに対して減速巻線ＷＲを直列に接続する場合であり、図中、主巻線ＷＭは実線，補助巻線ＷＡは鎖線，減速巻線ＷＲは２点鎖線で示されている。   In the present invention, as shown in FIG. 7, the winding is applied in a straight core state in which the yoke coupling body 21Y is developed substantially linearly. 7A is a top view of the yoke coupling body 21Y, FIG. 7B is a front view seen from the teeth side, and FIG. 7C is a bottom view. The winding example of FIG. 7 is a case where a reduction winding WR is connected in series to the main winding WM, as shown in FIGS. 1 and 2 (a). Is indicated by a solid line, the auxiliary winding WA is indicated by a chain line, and the reduction winding WR is indicated by a two-dot chain line.

まず、図７（ａ）を参照して、主巻線ＷＭ（ＷＭ１〜ＷＭ６）を奇数番目のティースＴ１を始端側ティースとして、Ｔ１からＴ３，Ｔ５，Ｔ７，Ｔ９，Ｔ１１にかけて１ティース置きに一連に巻回する。その際、主巻線ＷＭの渡り線は、上部インシュレータ３１の偶数番目のセグメント３３に形成されているガイド板３４ａ，３４ｂ（図５参照）間を通す。   First, referring to FIG. 7 (a), the main winding WM (WM1 to WM6) is a series of every other tooth from T1 to T3, T5, T7, T9, and T11 with odd-numbered teeth T1 as the starting end side teeth. Wind around. At that time, the connecting wire of the main winding WM passes between the guide plates 34 a and 34 b (see FIG. 5) formed in the even-numbered segments 33 of the upper insulator 31.

次に、減速巻線ＷＲ（ＷＲ１〜ＷＲ６）を主巻線ＷＭと同じく奇数番目のティースＴ１，Ｔ３，Ｔ５，Ｔ７，Ｔ９，Ｔ１１にかけて１ティース置きに一連に巻回するのであるが、これには２通りの方法がある。   Next, the reduction winding WR (WR1 to WR6) is wound in series every other tooth over the odd-numbered teeth T1, T3, T5, T7, T9, and T11 like the main winding WM. There are two ways.

これを図８により説明する。図８（ａ）は上記ヨーク連結体２１Ｙに含まれるティースを示す模式図，図８（ｂ）は減速巻線ＷＲの第１巻線方法を示す説明図，図８（ｃ）は減速巻線ＷＲの第２巻線方法を示す説明図である。なお、減速巻線ＷＲの巻線方向は主巻線ＷＭにより発生する磁束と同じ方向に磁束が出るように巻かれる。   This will be described with reference to FIG. 8A is a schematic view showing teeth included in the yoke coupling body 21Y, FIG. 8B is an explanatory view showing a first winding method of the reduction winding WR, and FIG. 8C is a reduction winding. It is explanatory drawing which shows the 2nd winding method of WR. The winding direction of the reduction winding WR is wound so that the magnetic flux is generated in the same direction as the magnetic flux generated by the main winding WM.

まず、図８（ｂ）の第１巻線方法では、終端側ティースＴ１１に主巻線ＷＭ６を巻回したのち、図示しない巻線機のニードルをそのまま折り返して、減速巻線ＷＲ１〜ＷＲ６を終端側ティースＴ１１からＴ９，Ｔ７，Ｔ５，Ｔ３へと始端側ティースＴ１に向けて１ティース置きに一連に巻回する。この場合、電流の方向が主巻線ＷＭと反対向きに流れるため、主巻線ＷＭと巻回方向は逆になる。   First, in the first winding method of FIG. 8B, after winding the main winding WM6 around the terminating side tooth T11, the needle of the winding machine (not shown) is folded as it is, and the reduction windings WR1 to WR6 are terminated. From side teeth T11 to T9, T7, T5, T3, every other tooth is wound in series toward the starting end side teeth T1. In this case, since the direction of current flows in the opposite direction to the main winding WM, the main winding WM and the winding direction are reversed.

次に、図８（ｃ）の第２巻線方法では、終端側ティースＴ１１に主巻線ＷＭ６を巻回したのち、上記ニードルを始端側ティースＴ１に戻し、減速巻線ＷＲ１〜ＷＲ６を始端側ティースＴ１からＴ３，Ｔ５，Ｔ７，Ｔ９へと終端側ティースＴ１１に向けて１ティース置きに一連に巻回する。この場合、電流の方向が主巻線ＷＭと同方向に流れるため、主巻線ＷＭと巻回方向は同じになる。図７はこの第２巻線方法を示したものである。よって、第１巻線方法は図７の減速巻線ＷＲのみを逆にしたものとなる。   Next, in the second winding method of FIG. 8C, after the main winding WM6 is wound around the terminal side tooth T11, the needle is returned to the starting end side tooth T1, and the deceleration windings WR1 to WR6 are set to the starting end side. The teeth T1 to T3, T5, T7, and T9 are wound in series every other tooth toward the terminal side teeth T11. In this case, since the direction of current flows in the same direction as the main winding WM, the winding direction is the same as that of the main winding WM. FIG. 7 shows this second winding method. Therefore, the first winding method is the reverse of only the deceleration winding WR in FIG.

ここで、主巻線ＷＭの始端側ティースＴ１から引き出される端子をＧ，終端側ティースＴ１１から引き出される端子をＢとし、減速巻線ＷＲの始端側ティースＴ１から引き出される端子をＡ，終端側ティースＴ１１から引き出される端子をＦとすると、図２（ａ）に示すように、主巻線ＷＭの端子Ｂと減速巻線ＷＲの端子Ｆは共通に接続されるため、図８（ｂ）の第１巻線方法によると、始端側ティースＴ１における主巻線ＷＭ１と減速巻線ＷＲ６との間の電位差がきわめて大きくなるため、それらの巻線間に絶縁シートなどを介装する必要がある。   Here, G is a terminal drawn from the start end tooth T1 of the main winding WM, B is a terminal drawn from the end end tooth T11, A is a terminal drawn from the start end tooth T1 of the reduction winding WR, and A is the end side tooth. Assuming that the terminal drawn from T11 is F, as shown in FIG. 2 (a), the terminal B of the main winding WM and the terminal F of the reduction winding WR are connected in common. According to the one-winding method, the potential difference between the main winding WM1 and the reduction winding WR6 in the start end side tooth T1 becomes extremely large, and therefore it is necessary to interpose an insulating sheet or the like between these windings.

これに対して、図８（ｃ）の第２巻線方法によれば、始端側ティースＴ１における主巻線ＷＭ１と減速巻線ＷＲ６との間の電位差が低減されるため、上記第１巻線方法のように絶縁処理が不要であり、この意味で上記ニードルを始端側ティースＴ１に戻してから減速巻線ＷＲを巻回する第２巻線方法の方が好ましい。なお、いずれの場合でも、減速巻線ＷＲの渡り線は、主巻線と同じく上部インシュレータ３１のガイド板３４ａ，３４ｂ間を通す。   On the other hand, according to the second winding method of FIG. 8C, the potential difference between the main winding WM1 and the reduction winding WR6 in the start end side tooth T1 is reduced. Insulation treatment is unnecessary as in the method, and in this sense, the second winding method in which the speed reduction winding WR is wound after the needle is returned to the starting end tooth T1 is preferable. In any case, the crossover of the deceleration winding WR passes between the guide plates 34a and 34b of the upper insulator 31 like the main winding.

次に、補助巻線ＷＡ（ＷＡ１〜ＷＡ６）については、図７（ｃ）に示すように、偶数番目のティースＴ２を始端側ティースとして、Ｔ２からＴ４，Ｔ６，Ｔ８，Ｔ１０，Ｔ１２にかけて１ティース置きに一連に巻回する。その際、補助巻線ＷＡの渡り線は、下部インシュレータ３２の奇数番目のセグメント３３に形成されているガイド板３４ａ，３４ｂ間を通す。   Next, with respect to the auxiliary winding WA (WA1 to WA6), as shown in FIG. 7C, the even-numbered teeth T2 are used as the starting end side teeth, and one tooth is formed from T2 to T4, T6, T8, T10, T12. Wind it in a series. At that time, the connecting wire of the auxiliary winding WA passes between the guide plates 34 a and 34 b formed in the odd-numbered segments 33 of the lower insulator 32.

そして、始端側ティースＴ２から補助巻線ＷＡの一方の端子Ｅを引き出し、また、終端側ティースＴ１２から補助巻線ＷＡの一方の端子Ｄを引き出したうえで、ヨーク連結体２１Ｙの両端をつなげて環状のヨーク２１とし、各端子Ａ〜Ｆを図２（ａ）に示すように結線したのち、ヨークメンバー２１ａ〜２１ｌをモールド成型により一体に固める。なお、結線とモールド成型の順番は任意であってよい。   Then, after pulling out one terminal E of the auxiliary winding WA from the start end side tooth T2 and pulling out one terminal D of the auxiliary winding WA from the end end side tooth T12, both ends of the yoke coupling body 21Y are connected. After forming the annular yoke 21 and connecting the terminals A to F as shown in FIG. 2A, the yoke members 21a to 21l are solidified together by molding. Note that the order of connection and molding may be arbitrary.

次に、図９により、補助巻線ＷＡ側に減速巻線ＷＲを巻回する例について説明する。図９（ａ）はヨーク連結体２１Ｙの平面図，図９（ｂ）はティース側から見た正面図，図９（ｃ）は底面図である。   Next, an example in which the reduction winding WR is wound around the auxiliary winding WA will be described with reference to FIG. 9A is a plan view of the yoke coupling body 21Y, FIG. 9B is a front view seen from the tooth side, and FIG. 9C is a bottom view.

この場合、主巻線ＷＭ（ＷＭ１〜ＷＭ６）は、図７（ａ）と同じく巻回されてよい。補助巻線ＷＡ（ＷＡ１〜ＷＡ６）は、図９（ｃ）に示すように、偶数番目のティースＴ２を始端側ティースとして、Ｔ２からＴ４，Ｔ６，Ｔ８，Ｔ１０，Ｔ１２にかけて１ティース置きに一連に巻回する。また、主巻線ＷＭ，補助巻線ＷＡはそれぞれ上部インシュレータ３１、下部インシュレータ３２のガイド板を通される。   In this case, the main winding WM (WM1 to WM6) may be wound in the same manner as in FIG. As shown in FIG. 9C, the auxiliary windings WA (WA1 to WA6) are arranged in series every other tooth from T2 to T4, T6, T8, T10, and T12 with the even-numbered teeth T2 as the starting end side teeth. Wind. The main winding WM and the auxiliary winding WA are passed through the guide plates of the upper insulator 31 and the lower insulator 32, respectively.

その後、減速巻線ＷＲ（ＷＲ１〜ＷＲ６）を補助巻線ＷＡと同じく偶数番目のティースに、補助巻線ＷＡと同方向に巻回するのであるが、この場合においても、先の図８（ｃ）で説明したように、終端側ティースＴ１２に補助巻線ＷＡ６を巻回したのち、図示しない巻線機のニードルを始端側ティースＴ２に戻してから、減速巻線ＷＲ１〜ＷＲ６を巻回することが好ましい。この場合、減速巻線ＷＲは補助巻線ＷＡと同じように下部インシュレータ３２のカイド板を通る。   Thereafter, the reduction winding WR (WR1 to WR6) is wound around the even-numbered teeth in the same direction as the auxiliary winding WA in the same manner as the auxiliary winding WA. ) After winding the auxiliary winding WA6 around the terminal side tooth T12, the needle of the winding machine (not shown) is returned to the starting side tooth T2, and then the reduction windings WR1 to WR6 are wound. Is preferred. In this case, the deceleration winding WR passes through the guide plate of the lower insulator 32 in the same manner as the auxiliary winding WA.

減速巻線ＷＲの始端側ティースＴ２から引き出される端子をＡ，終端側ティースＴから引き出される端子をＦとして、主巻線ＷＭの端子Ｇ，Ｂ、補助巻線ＷＡの端子Ｄ，Ｅおよび減速巻線ＷＲの端子Ｆ，Ａは、図２（ｂ）の等価回路に示すように結線され、通常、可変速スイッチＳＷは端子Ｆを選択し、減速時に端子Ａが選択されて、補助巻線ＷＡに対して減速巻線ＷＲが直列に接続される。   The terminal drawn from the start end side tooth T2 of the deceleration winding WR is A, the terminal drawn from the end side tooth T is F, the terminals G and B of the main winding WM, the terminals D and E of the auxiliary winding WA, and the reduction winding. The terminals F and A of the line WR are connected as shown in the equivalent circuit of FIG. 2B. Normally, the variable speed switch SW selects the terminal F, and the terminal A is selected during deceleration, so that the auxiliary winding WA In contrast, a reduction winding WR is connected in series.

すなわち、図２（ａ）（ｂ）の等価回路において、可変速スイッチＳＷにより端子Ａを選択すると、図２（ａ）においては、主巻線ＷＭに対して減速巻線ＷＲが直列に接続され、図２（ｂ）においては、補助巻線ＷＡに対して減速巻線ＷＲが直列に接続されるため、主巻線ＷＭもしくは補助巻線ＷＡに印加される電圧が低下するとともに、位相角が広くなることによりトルクが低下し、減速回転となる。   That is, in the equivalent circuit of FIGS. 2A and 2B, when the terminal A is selected by the variable speed switch SW, the reduction winding WR is connected in series to the main winding WM in FIG. In FIG. 2B, since the reduction winding WR is connected in series with the auxiliary winding WA, the voltage applied to the main winding WM or the auxiliary winding WA is reduced, and the phase angle is By widening, the torque decreases and the rotation is reduced.

また、本発明には、主巻線ＷＭと補助巻線ＷＡの双方に減速巻線ＷＲを巻回する場合も含まれる。その巻回方法は、図７と図９を合わせたものであってよいため、詳しい説明は省略し、図２（ｃ）にその等価回路を示す。すなわち、この場合には、図２（ｃ）のように、主巻線ＷＭ用の減速巻線ＷＲａに対して、さらに補助巻線ＷＡ用の減速巻線ＷＲｂが直列となるように結線される。   Further, the present invention includes a case where the reduction winding WR is wound around both the main winding WM and the auxiliary winding WA. Since the winding method may be a combination of FIG. 7 and FIG. 9, detailed description thereof is omitted, and an equivalent circuit thereof is shown in FIG. In other words, in this case, as shown in FIG. 2C, the reduction winding WRb for the auxiliary winding WA is further connected in series with the reduction winding WRa for the main winding WM. .

これによれば、可変速スイッチＳＷにより減速巻線を選択することにより、補助巻線ＷＡ用の減速巻線ＷＲｂに主巻線ＷＭと同相の電流が流れ、補助巻線ＷＡとの合成磁束が発生するため、トータルの磁束量が減り、トルクが低下して減速回転となる。   According to this, by selecting a reduction winding by the variable speed switch SW, a current having the same phase as the main winding WM flows in the reduction winding WRb for the auxiliary winding WA, and the combined magnetic flux with the auxiliary winding WA is generated. As a result, the total amount of magnetic flux is reduced, the torque is reduced, and the rotation is reduced.

本発明により製造される誘導電動機の一例を断面として示す模式図。The schematic diagram which shows an example of the induction motor manufactured by this invention as a cross section. 減速巻線を有する誘導電動機の第１ないし第３の等価回路図。The 1st thru | or 3rd equivalent circuit schematic of the induction motor which has a reduction | decrease winding. 上記誘導電動機の固定子側のヨークを抜き出して示す側面図。The side view which extracts and shows the yoke by the side of the stator of the said induction motor. 上記ヨークを構成するヨークブロックを示す（ａ）平面図，（ｂ）正面図。The (a) top view and (b) front view which show the yoke block which comprises the said yoke. ヨーク連結体を示す斜視図。The perspective view which shows a yoke coupling body. 上記ヨーク連結体の分解図。The exploded view of the said yoke coupling body. 本発明の第１実施形態に係る巻線の巻回方法を説明するための直線状に展開された上記ヨーク連結体の（ａ）上面図，（ｂ）正面図，（ｃ）底面図。The (a) top view, (b) front view, (c) bottom view of the said yoke coupling body developed linearly for demonstrating the winding method of the coil | winding which concerns on 1st Embodiment of this invention. 上記第１実施形態において、好ましい減速巻線の巻回方法を説明するための説明図。In the said 1st Embodiment, explanatory drawing for demonstrating the winding method of a preferable deceleration winding. 本発明の第２実施形態に係る巻線の巻回方法を説明するための直線状に展開された上記ヨーク連結体の（ａ）平面図，（ｂ）正面図，（ｃ）底面図。The (a) top view, (b) front view, (c) bottom view of the said yoke coupling body expand | deployed linearly for demonstrating the winding method of the coil | winding which concerns on 2nd Embodiment of this invention.

符号の説明Explanation of symbols

１０ 回転子
１１ 回転出力軸
２０ 固定子
２１ ヨーク
２１ａ〜２１ｌ ヨークメンバー
３０ インシュレータ
３１ 上部インシュレータ
３２ 下部インシュレータ
３３ セグメント
Ｔ１〜Ｔ１２ ティース
ＷＭ（ＷＭ１〜ＷＭ６） 主巻線
ＷＡ（ＷＡ１〜ＷＡ６） 補助巻線
ＷＲ（ＷＲ１〜ＷＲ６） 減速巻線 DESCRIPTION OF SYMBOLS 10 Rotator 11 Rotation output shaft 20 Stator 21 Yoke 21a-21l Yoke member 30 Insulator 31 Upper insulator 32 Lower insulator 33 Segment T1-T12 Teeth WM (WM1-WM6) Main winding WA (WA1-WA6) Auxiliary winding WR (WR1 to WR6) Reduction winding

Claims (8)

回転出力軸を有する回転子と、上記回転子の外周側に同軸的に配置される固定子とを含み、上記固定子は環状のヨークの内周面側に突設された２Ｎ個（Ｎは極数）のティースを有し、上記各ティースのうち奇数番目の上記ティースに主巻線が巻回され、偶数番目の上記ティースに補助巻線が巻回される誘導電動機の製造方法において、
上記各ティースを含む２Ｎ個のヨークメンバーを所定の連結手段で屈曲可能に一連につなげたヨーク連結体とし、上記ヨーク連結体をほぼ直線状に展開した状態で、上記主巻線を上記奇数番目の各ティースに渡り線を介して一連に巻回するとともに、上記補助巻線を上記偶数番目の各ティースに渡り線を介して一連に巻回したのち、上記ヨーク連結体の両端を連結して上記環状のヨークとすることを特徴とする誘導電動機の製造方法。 A rotor having a rotary output shaft; and a stator coaxially disposed on the outer peripheral side of the rotor. The stator is protruded on the inner peripheral surface side of the annular yoke (N is a In the method of manufacturing an induction motor in which the main winding is wound around the odd-numbered teeth among the teeth, and the auxiliary winding is wound around the even-numbered teeth,
2N yoke members including the teeth are connected to each other in a series so as to be bent by a predetermined connecting means, and the main winding is connected to the odd-numbered number in a state in which the yoke connecting body is expanded substantially linearly. After winding the auxiliary winding around the even-numbered teeth in a series via the crossover wire, connect both ends of the yoke coupling body. A method for manufacturing an induction motor, wherein the annular yoke is used. 上記主巻線の渡り線を上記ヨーク連結体の一方の端面側に配線し、上記補助巻線の渡り線を上記ヨーク連結体の他方の端面側に配線することを特徴とする請求項１に記載の誘導電動機の製造方法。   The connecting wire of the main winding is wired to one end face side of the yoke connecting body, and the connecting wire of the auxiliary winding is wired to the other end face side of the yoke connecting body. The manufacturing method of the induction motor of description. 上記主巻線が巻回される上記奇数番目の各ティースおよび／または上記補助巻線が巻回される上記偶数番目の各ティースに、さらに減速巻線を渡り線を介して一連に巻回することを特徴とする請求項１または２に記載の誘導電動機の製造方法。   Further, a speed reduction coil is wound in series through a crossover wire on each of the odd-numbered teeth around which the main winding is wound and / or on each of the even-numbered teeth around which the auxiliary winding is wound. The method of manufacturing an induction motor according to claim 1 or 2, 上記主巻線もしくは上記補助巻線を、その始端側ティースから終端側ティースにまで１ティース置きに一連に巻回したのち、その巻線を切断することなく上記始端側ティースに戻し、上記減速巻線用として再度上記始端側ティースから上記終端側ティースにまで１ティース置きに一連に巻回することを特徴とする請求項３に記載の誘導電動機の製造方法。   The main winding or the auxiliary winding is wound in series every other tooth from the starting end side teeth to the ending side teeth, and then returned to the starting end side teeth without cutting the windings, and the deceleration winding is performed. 4. The method of manufacturing an induction motor according to claim 3, wherein the wire is continuously wound every other tooth from the starting end side tooth to the end end side tooth for the wire. 上記ヨーク連結体を１ブロック内に複数個のヨークメンバーを含む複数のヨークブロックに区分けし、上記各ヨークブロックに含まれるヨークメンバー同士は薄肉ヒンジを介して屈曲自在とし、上記ヨークブロック間は上記ヨーク連結体に被せられるインシュレータを介して屈曲自在につなげられることを特徴とする請求項１ないし４のいずれか１項に記載の誘導電動機の製造方法。   The yoke coupling body is divided into a plurality of yoke blocks including a plurality of yoke members in one block, the yoke members included in each yoke block are bendable via thin-walled hinges, The method for manufacturing an induction motor according to any one of claims 1 to 4, wherein the induction motor is connected flexibly through an insulator placed over the yoke coupling body. 上記ヨーク連結体の両端を連結して上記環状のヨークとしたのち、上記環状のヨークをモールド成型により一体に固めることを特徴とする請求項１ないし５のいずれか１項に記載の誘導電動機の製造方法。   6. The induction motor according to claim 1, wherein both ends of the yoke coupling body are connected to form the annular yoke, and then the annular yoke is integrally fixed by molding. Production method. 回転出力軸を有する回転子と、上記回転子の外周側に同軸的に配置される固定子とを含み、上記固定子は環状のヨークの内周面側に突設された２Ｎ個（Ｎは極数）のティースを有し、上記各ティースのうち奇数番目の上記ティースに主巻線が巻回され、偶数番目の上記ティースに補助巻線が巻回されている誘導電動機において、
上記各ティースを含む２Ｎ個のヨークメンバーを所定の連結手段で屈曲可能に一連につなげたヨーク連結体を備え、上記ヨーク連結体の上記奇数番目の各ティースに上記主巻線が渡り線を介して一連に巻回され、上記ヨーク連結体の上記偶数番目の各ティースに上記補助巻線が渡り線を介して一連に巻回されていることを特徴とする誘導電動機。 A rotor having a rotary output shaft; and a stator coaxially disposed on the outer peripheral side of the rotor. The stator is protruded on the inner peripheral surface side of the annular yoke (N is a In the induction motor in which the main winding is wound around the odd-numbered teeth among the teeth, and the auxiliary winding is wound around the even-numbered teeth,
A yoke connecting body in which 2N yoke members including the teeth are connected in series so as to be bent by a predetermined connecting means, and the main winding is connected to the odd-numbered teeth of the yoke connecting body via a crossover; An induction motor in which the auxiliary winding is wound around the even-numbered teeth of the yoke coupling body in series via a jumper wire. 上記主巻線の渡り線が上記ヨーク連結体の一方の端面側に配線され、上記補助巻線の渡り線が上記ヨーク連結体の他方の端面側に配線されていることを特徴とする請求項７に記載の誘導電動機。
The connecting wire of the main winding is wired on one end face side of the yoke connecting body, and the connecting wire of the auxiliary winding is wired on the other end face side of the yoke connecting body. 7. The induction motor according to 7.
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